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Latest Science News -- ScienceDaily     Provided courtesy of: http://www.sciencedaily.com

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Clues to role of magnetism in iron-based superconductors uncovered
Thu, 21 Aug 2014 15:38:34 EDT - New measurements of atomic-scale magnetic behavior in iron-based superconductors are challenging conventional wisdom about superconductivity and magnetism.
Primary care physicians can be critical resource for abused women in rural areas
Thu, 21 Aug 2014 14:16:14 EDT - Many primary care physicians in rural communities do not routinely screen women for intimate partner violence, according to public health researchers. Rural women who are exposed to such violence have limited resources if they seek help. However, the United States Preventive Services Task Force now recommends IPV screening in the primary care setting.
Laser device may end pin pricks, improve quality of life for diabetics
Thu, 21 Aug 2014 14:16:10 EDT - Researchers have developed a way to use a laser to measure people's blood sugar, and, with more work to shrink the laser system to a portable size, the technique could allow diabetics to check their condition without pricking themselves to draw blood. In a new article, the researchers describe how they measured blood sugar by directing their specialized laser at a person's palm.
Hot-spring bacteria reveal ability to use far-red light for photosynthesis
Thu, 21 Aug 2014 14:15:50 EDT - Bacteria growing in near darkness use a previously unknown process for harvesting energy and producing oxygen from sunlight, scientists have discovered. The discovery lays the foundation for further research aimed at improving plant growth, harvesting energy from the sun, and understanding dense blooms like those now occurring on Lake Erie and other lakes worldwide.
Sunlight, not microbes, key to carbon dioxide in Arctic
Thu, 21 Aug 2014 14:15:48 EDT - The vast reservoir of carbon stored in Arctic permafrost is gradually being converted to carbon dioxide after entering the freshwater system in a process thought to be controlled largely by microbial activity. However, researchers say that sunlight and not bacteria is the key to triggering the production of CO2 from material released by Arctic soils.
X-ray laser probes tiny quantum tornadoes in superfluid droplets
Thu, 21 Aug 2014 14:15:44 EDT - An experiment at the Department of Energy's SLAC National Accelerator Laboratory revealed a well-organized 3-D grid of quantum 'tornadoes' inside microscopic droplets of supercooled liquid helium -- the first time this formation has been seen at such a tiny scale. The findings by an international research team provide new insight on the strange nanoscale traits of a so-called 'superfluid' state of liquid helium.
Severe drought is causing the western US to rise like a spring uncoiling
Thu, 21 Aug 2014 14:15:42 EDT - The severe drought gripping the western United States in recent years is changing the landscape well beyond localized effects of water restrictions and browning lawns. Scientists have used GPS data to discover that the growing, broad-scale loss of water is causing the entire western US to rise up like an uncoiled spring.
How hummingbirds evolved to detect sweetness
Thu, 21 Aug 2014 14:14:49 EDT - Hummingbirds' ability to detect sweetness evolved from an ancestral savory taste receptor that is mostly tuned to flavors in amino acids. Feasting on nectar and the occasional insect, the tiny birds expanded throughout North and South America, numbering more than 300 species over the 40 to 72 million years since they branched off from their closest relative, the swift.
Cause of global warming hiatus found deep in the Atlantic Ocean
Thu, 21 Aug 2014 14:14:45 EDT - Observations show that the heat absent from the Earth's surface for more than a decade is plunging deep in the north and south Atlantic Ocean, and is part of a naturally occurring cycle. Subsurface warming in the ocean explains why global average air temperatures have flatlined since 1999, despite greenhouse gases trapping more solar heat at Earth's surface.
First direct evidence of 'spin symmetry' in atoms
Thu, 21 Aug 2014 14:14:36 EDT - Physicists have observed the first direct evidence of symmetry in the magnetic properties -- or nuclear 'spins' -- of atoms. The advance could spin off practical benefits such as the ability to simulate and better understand exotic materials such as superconductors.

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